Biomagnification of mercury through the benthic food webs of a temperate estuary: Masan Bay, Korea
- Authors
- Kim, Eunhee; Kim, Hyunji; Shin, Kyung-hoon; Kim, Min-seob; Kundu, Sampa Rani; Lee, Byeong-gweon; Han, Seunghee
- Issue Date
- Jun-2012
- Publisher
- Society of Environmental Toxicology and Chemistry
- Keywords
- Mercury; Methylmercury; Food web; Trophic transfer; Magnification
- Citation
- Environmental Toxicology and Chemistry, v.31, no.6, pp.1254 - 1263
- Indexed
- SCIE
SCOPUS
- Journal Title
- Environmental Toxicology and Chemistry
- Volume
- 31
- Number
- 6
- Start Page
- 1254
- End Page
- 1263
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/32669
- DOI
- 10.1002/etc.1809
- ISSN
- 0730-7268
- Abstract
- The authors examined food web magnification factors of total mercury (THg) and methylmercury (MeHg) for the benthic organisms in Masan Bay, a semiclosed, temperate estuary located on the southeastern coast of Korea. For benthic invertebrates, concentrations of THg and MeHg (%MeHg) ranged from 9.57 to 195 and 2.56 to 111?ng/g dry weight (12.285.6%), respectively. Benthic fish THg and MeHg (%MeHg) concentrations ranged widely from 10.8 to 618 and 2.90 to 529?ng/g dry weight (22.993.9%), respectively. The linear regression slopes of log [Hg] relative to d15N (i.e., food web magnification factors) found for the Masan Bay benthic organisms were 0.119 for THg and 0.168 for MeHg. These values are similar to the food web magnification factors of benthic organisms and lower than those of pelagic organisms of various coastal marine environments. It suggests that pelagic organisms might be at greater risk of THg and MeHg accumulation than benthic biota. Environ. Toxicol. Chem. 2012;31:12541263. (c) 2012 SETAC
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